1991850

素因数分解:

$2^1\times 3^1\times 5^2\times 7^2\times {\mathrm{271}}^1$

素因数の和:300

約数の個数: 72

約数和(自身を含む): 5767488

約数和(自身を除く): 3775638

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 49, 50, 70, 75, 98, 105, 147, 150, 175, 210, 245, 271, 294, 350, 490, 525, 542, 735, 813, 1050, 1225, 1355, 1470, 1626, 1897, 2450, 2710, 3675, 3794, 4065, 5691, 6775, 7350, 8130, 9485, 11382, 13279, 13550, 18970, 20325, 26558, 28455, 39837, 40650, 47425, 56910, 66395, 79674, 94850, 132790, 142275, 199185, 284550, 331975, 398370, 663950, 995925, 1991850]

約数ペア:

[(1, 1991850), (2, 995925), (3, 663950), (5, 398370), (6, 331975), (7, 284550), (10, 199185), (14, 142275), (15, 132790), (21, 94850), (25, 79674), (30, 66395), (35, 56910), (42, 47425), (49, 40650), (50, 39837), (70, 28455), (75, 26558), (98, 20325), (105, 18970), (147, 13550), (150, 13279), (175, 11382), (210, 9485), (245, 8130), (271, 7350), (294, 6775), (350, 5691), (490, 4065), (525, 3794), (542, 3675), (735, 2710), (813, 2450), (1050, 1897), (1225, 1626), (1355, 1470)]